Earlier quoted context omitted.
Please don't give medical advice on the internet, especially without specifying what the advice is for, or without knowing what condition the other person has. It's obviously well intentioned, but incredibly reckless.
Do you really think someone is going to read that, start ignoring their doctors, throw all their medicine in the bin, and become some kind of natto evangelist? It’s a common Japanese food and he just said give it a go.
If the last two years should have taught us anything, it's that even otherwise intelligent people will interpret perfectly reasonable, specific and precise health advice in the worst possible way.